Generation of internal waves in the sea by local perturbations of wind and density flows on the surface |
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Authors: | V F Ivanov |
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Institution: | (1) Centre for Atmospheric Sciences, Indian Institute of Technology, Hauz Khas, New Delhi, 110 016, India; |
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Abstract: | On the basis of a nonlinear model taking into account viscosity, density diffusion, and currents, we perform the numerical
analysis of propagation of perturbations formed in the abyssal part of the Black Sea as a result of the action of tangential
wind stresses or density flows in the form of a strip on the sea surface. It is shown that, in the course of time, in the
region of the bottom slope, these perturbations generate a train of waves in the sea, which causes oscillations of the fields
of density and currents. There are some differences between the generation of internal waves by the flows of density and the
wind. Unlike the wind action, in the presence of flows of density in the upper layer in the region of the strip, the initial
period of generation is characterized by the formation of intense perturbations without train structure.
Translated by Peter V. Malyshev and Dmitry V. Malyshev |
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Keywords: | |
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